/ Thesaurus / F Synonyms of fundamental particle Find synonyms for: Noun1. elementary particle, fundamental particle, particle, subatomic particleusage: (physics) a particle that is less complex than an atom; regarded as constituents of all matterWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: dormant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language